1. The Hong Kong Polytechnic University
Line Following Trolley
The Hong Kong Polytechnic University
Department of Electrical Engineering
FYP_4121_25
TO HO YUEN D
Supervisor: Dr. Alan Lau
Introduction
Service Sector contributes heavily to Hong Kong economy
Labor intensive
Involves many routine and simple tasks
Save labor and time costs by introducing automated serving trolley
Mainly target restaurants, hotels, elderly care centers and other similar services
Objectives
Save man costs
Save wages
Save time
Provide accurate and reliable services
Able to travel on fixed route
Avoid human careless mistakes
Adapt to different purposes
Can be used in different places like hospitals, restaurants and elderly care centers
System Program
Methodologies -
PID Control
Sensor 4
Sensor 3
Sensor 2
Sensor 1
1 = True,
0 = False 1
Forward
Right
Left
Else, stop
4-way IR sensors
Future Development
WiFi/Bluetooth positioning
Mobile App